This article covers ADATA Technology HV620S 外付けハードドライブ 2TB ブラック AHV620S-2TU3-CBK.

Overview

ADATA's HV620S is a 2TB portable external hard drive designed for straightforward backup and storage expansion. The model AHV620S-2TU3-CBK comes in a sleek black enclosure and connects via USB 3.2 Gen1 (USB 3.0), offering transfer speeds up to 5Gbps. It's an entry-level solution for users who need affordable, large-capacity storage without the complexity of internal installation. The drive is 2.5-inch form factor, bus-powered, and requires no external AC adapter. Simply plug it into any USB port on your PC or laptop, and it's ready to use. With a price point often under $50 for 2TB, it competes well in the budget external HDD segment.

Compatibility Guide

The HV620S uses USB 3.0 (USB 3.2 Gen1) and is backward compatible with USB 2.0 and USB 1.1 ports. However, for optimal performance, connect it to a USB 3.0 or higher port. The drive is 2.5-inch, about 15mm thick, fitting easily into most USB ports. If port spacing is tight, use the included USB cable (approx. 50cm) to avoid blocking adjacent ports. It supports Windows 10/11, macOS 10.12+, and Chrome OS out of the box. The factory format is NTFS, so Windows users can start immediately. Mac users may need to reformat to exFAT or APFS for full read/write access.

Product Info

Launched around 2017, the HV620S remains a popular choice for budget-conscious buyers. Pricing for the 2TB variant typically ranges from ¥3,000 to ¥4,000 in Japan, making it one of the more affordable options per terabyte. Warranty is standard 3 years (check region). Inside is a 5400rpm 2.5-inch HDD delivering sequential read speeds around 120MB/s and write speeds around 110MB/s over USB 3.0. This is typical for a portable HDD and sufficient for backups, media storage, and file transfers. Market positioning: entry-level to mid-range. It's ideal for users who prioritize capacity over speed and want a simple, no-fuss external drive.

Best Use Cases

First-time backup users: Easy setup, no drivers needed. 2TB is enough for family photos, videos, and documents. Great for those who want a reliable backup solution without spending much. Laptop storage expansion: If your laptop has a small SSD (256GB or 512GB), offload games, projects, or media to the HV620S to free up internal space. Secondary storage for desktops: Use it as a backup target or file archive. Works well alongside a fast internal SSD for daily tasks. Not recommended for: Heavy read/write workloads, gaming where load times matter, or frequent travel where shock resistance is critical. In those cases, consider an external SSD instead.

Things to Consider

Being a mechanical HDD, the HV620S is more susceptible to physical shock than an SSD. Always eject safely before moving it. Also, if you connect it to a USB 2.0 port, transfer speeds will drop significantly (max 480Mbps). Check your PC's USB port capabilities. Competitors like Seagate Backup Plus Portable and WD My Passport offer similar specs but often include backup software. The HV620S lacks bundled software, so you'll need to rely on OS-level backup tools or third-party solutions. For users needing 4TB or more, a 3.5-inch external HDD with AC power may offer better cost per gigabyte, though it sacrifices portability. ## FAQ
Q: Can I use this drive with a Mac? A: Yes, but the drive is formatted as NTFS. Mac can read it, but to write you need to reformat to exFAT or APFS using Disk Utility. This will erase all data. Q: Is it suitable for gaming? A: You can install games on it, but load times will be longer than an internal SSD. It works for storing large game libraries, but for competitive online gaming, an SSD is recommended. Q: Will it work through a USB hub? A: It may work, but bus-powered hubs might not supply enough power. For reliable operation, connect directly to your computer's USB port or use a powered USB hub.

Product Disclosure (Amazon)

  • Manufacturer: エイデータ(Adata)
  • Seller: JUNJUNストア
  • Fulfilled by: JUNJUNストア
  • ASIN: B075LCMN23
  • Note: This article covers a manufacturer-made product based on Amazon listing details.